AL Handmade Series

AL was developed through Altus's constant pursuit for the Louis Lot flute sound. To revive the beautiful sound, Altus analyzed the elements of silver materials at the time. Through trial and error, we finally succeeded in reproducing the sound with the component of 94.6% silver and several other metals. Hereafter, Ag946 became Altus SilverTM and is exclusive to Altus.


AL is an exclusive model made with our special alloy - Altus Silver™ with seamed tubing technology. It has a unique sound with full tonal color spectrum and unparalleled centered projection – the perfect marriage of vintage French flute tradition and modern seamed tubing technology.

Altus Scale

An instrument’s scale is determined by the size and placement of each of the tone holes and their relationship to each other. This crucial design aspect allows flutists to play with accurate intonation and effortless tone.

Altus flute maker Shuichi Tanaka and renowned British flutist William Bennett shared an admiration for Albert Cooper’s vision of updating and modernizing the traditional flute scale. Mr. Tanaka created the Altus Scale in cooperation with Mr. Bennett with vast performance experience and quest for precise intonation.

The collaboration of Tanaka and Bennett set a new standard for flute design. The Altus Scale was carefully designed to provide effortless intonation, impeccably tuned harmonics, and exceptionally balanced registers. This monumental achievement is one of the hallmarks of the great Altus flute making tradition.

Material Composition

Altus silver lip-plate and riser, Altus silver seamed headjoint, body and footjoint, silver mechanism - soldered tone holes


Our proprietary Altus Silver alloy is a perfectly engineered blend consisting of 94.6% silver and 18 precious metals, including small amounts of platinum and gold. Inspired by the preferred metallurgy of the great French flute making tradition, Altus silver was designed specifically for seamed tube creation. This results in a flute capable of producing a wide array of complex tonal colors.

Seamed Tubing

Made from a flat piece of metal that is rolled, hand planished and then seamed, the Altus seamed tube is truly the only handmade flute tube available in modern production. Altus seamed tubes are slightly thinner and handmade in a choice of two types of silver – Britannia silver (1607) and Altus Silver (AL).

Reliable Key Pipes

Altus Handmade Series feature Pristine Silver with powder metallurgy, a process where powdered silver metal is compacted at high pressure to fuse particles together directly into a rigid tube, to strengthen our key pipe structure and increase playability and sustainability.

Customizable Wall Thickness

This model comes with a wall tubing customization: heavy wall option. This provides flexibility for flutists with a desire for personal characteristics.

Soldered Tone Holes

The tone hole chimneys are formed separately and then soldered to the flute joint. This process allows for a consistent wall thickness around the holes and thus enables an even better resonance and timbre.

Keys: Closed / Open

Foot: C-foot / B-foot

Split-E Mechanism: Available

Open G# system: Available (offset, G# lever offset)

Inline / Offset: Available (Offset only for closed hole models)

Embouchure: S-Cut / Z-Cut / V-Cut

Lipplate & Riser options:

14K & 18K gold available

Key Options:

C# trill key

D# roller

C# roller

Pitch options:

A = 442, 440, 445

Wall Thickness:

Heavy wall

Plating Options:

18K gold


Hand Engraving: Available